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WorksheetsGenetics Review
Total questions: 33
Worksheet time: 17mins
What is the basic unit of structure and function in living organisms?
Organ
Muscle
Cell
Tissue
What is the male sex cell called?
Egg
Embryo
Sperm
Zygote
What is the female sex cell called?
Egg
Embryo
Sperm
Zygote
What is the male gender genotype?
XX
XY
YY
What is the female gender genotype?
XX
XY
YY
Reproduction that involves two parents that each contribute half of the genetics information
asexual
sexual
budding
regeneration
What controls the inherited traits in organisms?
cytoplasm
golgi bodies
mitochondria
chromosomes
A segment of DNA that codes for a specific trait
Gene
RNA
Allele
Chromosome
What does the genotype TT indicate?
Homozygous Recessive
Homozygous Dominant
Heterozygous Dominant
Heterozygous Recessive
What type of molecule contains genetic information that passes from parents to offspring?
DNA
RNA
Protein
Lipid
Which example BEST correctly represents sexual reproduction?
A flower budding
A starfish regenerating
A sperm fertilizing an egg
Bacteria undergoing binary fission
How are asexual and sexual reproduction similar?
A new organism is the exact copy of the parent
Two parents are required
Both create offspring
Each type is completed in 24 hours
What is one advantage for sexual reproduction in regards to disease?
Genetic Variation
Quick Reproduction
Longer Reproduction Time
Two Parents Needed
Which result is from asexual reproduction
Offspring have two parents
Offspring are identical to parents
Offspring have variations from siblings
Offspring have variations from parents
Sex-linked traits are
Recessive
Heterozygous
Dominant
DNA is shaped like:
A triple helix
A long, thin rod
A spiral ladder
A straight staircase
What is the best definition of genotype?
A physical appearance of a trait
A set of alleles for a given trait
A segment of DNA
A chromosome
What is the best definition of phenotype?
A physical appearance of a trait
A set of alleles for a given trait
A segment of DNA
A chromosome
Which genotype best represents a recessive trait?
BB
Bb
bb
bB
Recessive traits are always homozygous
True
False
Which statement is true of a plant with genotype TT and another with genotype Tt?
Each would have a different phenotype
All alleles are dominant
Both have the same phenotype
Both have the same genotype
Which is true of the plant offspring using the Punnett Square below? (Tall is dominant)
50% of the offspring will be tall
All will be tall
All will be short
75% will be tall
Yy and Yy had offspring. What percentage of the offpspring will have the same phenotype as the parents?
25%
50%
75%
100%
What term describes a trait with two different dominant alleles? (ex: blood type)
Complete dominance
Codominance
Incomplete dominance
Mutations
Brown eyes are dominant over blue. Cross homo dominant man and hetero woman.What % of offspring will have blue eyes?
0%
25%
50%
100%
Genotype (TT) is the physical trait
True
False
A cell that has completed mitosis:
Divided to create 4 identical cells
Divided to create 4 different cells
Divided to create 2 identical cells
Divided to create 2 different cells
A cell that has completed meiosis:
Divided to create 4 identical cells
Divided to create 4 different cells
Divided to create 2 identical cells
Divided to create 2 different cells
When is being genetically identical to the parent an advantage for organisms?
When the environment is changing and fast reproduction is needed
When many offspring are needed in a short period of time
When no mates are found
When the environment is just like the one the parents lived in
How can asexually reproducing organisms gain genetic diversity?
Crossing over
Mitosis
Mutations
Meiosis
A person is homozygous for having freckles. Freckles are dominant over no freckles. What is the person's genotype?
FF
ff
Ff
A bird has 48 chromosomes. If one of the cells goes through meiosis, how many chromosomes would the daughter cells have?
16
96
24
48
A bird has 48 chromosomes. If one of the cells goes through mitosis, how many chromosomes would the daughter cells have?
16
24
48
96
